I just ordered a waterline sunbrella form these guys for my 197. Had one for my previous 190 and it was very nice. Lots of us on this forum have used them in the past and nearly all of the reviews I've seen have been very positive.

For a trailerable cover, I recommend Evolution covers or Coversports Covers. No straps, no rubbing, no tent poles. I had to run mine in a virtual monsoon one night and the boat interior was bone dry on the other end.

Obviously, my boat isn't a MC, but if Brent at Coversports doesn't have a pattern, with some measurements, he can make something that will work perfectly.